Compost Ingredients

Our guide to the good, the bad, and the so-so compost ingredients.

By Willi Evans Galloway

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Building a compost pile creates more anxiety and obsession among gardeners than any other gardening activity. So before you start a pile, remember one thing: Relax.

"There's no right or wrong way of composting, and people get panicked that they have the wrong recipe," says Dr. Maynard. "Composting is a natural phenomenon—it's decomposing; you're just helping it along a bit." That said, there are good, bad, and so-so compost ingredients. So before you add an ingredient to your pile, make sure it's up to the compost quality-control test. Ask yourself four basic questions about each ingredient:

If you answer "no" or "I don't know" to any of these questions, forgo adding the ingredient to your pile. It's that easy. Mix and match the green and brown ingredients listed below until you find a compost recipe that works for you. Just keep in mind the carbon-to-nitrogen (C/N) ratio as you build your pile.